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Home >> Lexus >> 2021 >> LX 570 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System (Service Information) >> Water Pump >> Removal [09/2015 - ] >> Procedure

Removal [09/2015 - ]: Procedure

  1. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  2. REMOVE UPPER RADIATOR SUPPORT SEAL 

    Refer to PROCEDURE - Step 3

  3. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 1

  4. REMOVE FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 2

  5. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 4

  6. DRAIN ENGINE COOLANT 

    See step  5

  7. REMOVE AIR CLEANER HOSE ASSEMBLY 

    Refer to PROCEDURE - Step 10

  8. REMOVE AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 25

  9. REMOVE NO. 1 RADIATOR HOSE 
  10. REMOVE NO. 2 RADIATOR HOSE 
  11. REMOVE FAN SHROUD 

    See step  11

  12. REMOVE NO. 1 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 34

  13. DISCONNECT NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY (w/ Oil Cooler) 
    GTY147573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the No. 6 water by-pass hose.
    2. Remove the 3 bolts.
    3. Disconnect the water by-pass pipe with water hose.
  14. REMOVE WATER INLET HOUSING 
    1. Disconnect the No. 2 and No. 3 air hoses.
      GTY544058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the air pump connector.
    3. Disconnect the air pump connector clamp holder.
    4. Using a clip remover, detach the wire harness clamp.
    5. Disconnect the No. 5 water by-pass hose.
      GTY567132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the air tube bracket bolt.
    7. Disconnect the No. 3 water by-pass hose and remove the 3 bolts and water inlet housing.
      GTY603734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Remove the gasket from the water pump.
  15. REMOVE WATER PUMP PULLEY 
    1. Using a screwdriver or equivalent with its tip wrapped in protective tape, hold the water pump pulley.
      GTY947279Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      *b Hold
      *c Turn
    2. Remove the 4 bolts and water pump pulley.
  16. REMOVE WATER PUMP ASSEMBLY 
    1. Remove the 8 bolts, water pump and gasket.
      GTY136999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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